Tang, Hui-Wen Vivian; Yin, Mu-Shang - In: Economics of Education Review 31 (2012) 4, pp. 452-462
GM(1,1) and GM(1,1) rolling models derived from grey system theory were estimated using time-series data from projection studies by National Center for Education Statistics (NCES). An out-of-sample forecasting competition between the two grey prediction models and exponential smoothing used by...